package cn.school.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import javax.annotation.Resource;

@Component
public class LoginFiler implements GlobalFilter, Ordered {
    @Resource
    private RedisTemplate<String,Object> redisTemplate;
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();
        String token = request.getHeaders().getFirst("token");
        System.err.println(token);
        String path = request.getURI().getPath();
        if(path.contains("login")||path.contains("zhuce")  || path.contains("yanzhengma")){
            return chain.filter(exchange);
        }
        Object id = redisTemplate.opsForValue().get("id");
        if(token==null){
            System.out.println("token是空的");
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }else if (!token.equals(id)){
            System.out.println("token错误");
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
